/* ===== OPENCLAW 共享样式 · 科技深色风 ===== */
@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+SC:wght@400;700;900&family=Noto+Sans+SC:wght@300;400;500;700&family=JetBrains+Mono:wght@400;500&display=swap');

:root{
  --bg:       #080810;
  --bg2:      #0f0f1a;
  --bg3:      #151526;
  --surface:  #1a1a2e;
  --surface2: #22223a;
  --border:   rgba(255,255,255,0.07);
  --border2:  rgba(255,255,255,0.13);
  --red:      #e54545;
  --red2:     #e03820;
  --red-glow: rgba(192,57,43,0.25);
  --gold:     #c99516;
  --gold2:    #f0b429;
  --gold-glow:rgba(240,180,41,0.18);
  --text:     #e8e8e0;
  --text2:    #9898a8;
  --text3:    #5a5a6e;
  --mono:     'JetBrains Mono', monospace;
  --serif:    'Noto Serif SC', serif;
  --sans:     'Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--sans);
  background:var(--bg);
  color:var(--text);
  line-height:1.75;
  overflow-x:hidden;
  min-height:100vh;
}
img {
  max-width: 100%;
  height: auto;
  border: 0;
  vertical-align: middle;
  transform: rotateZ(0);
  -moz-transform: rotateZ(0);
  -webkit-transform: rotateZ(0);
  -o-transform: rotateZ(0);
  -webkit-transition: -webkit-transform .2s ease 0s;
  transition: transform .2s ease 0s;
}
/* ── SITE BANNER ── */
.site-banner{
  background:linear-gradient(90deg,#8b0000,var(--red),#8b0000);
  padding:9px 28px;text-align:center;font-size:12.5px;
  color:rgba(255,255,255,.9);letter-spacing:.3px;
}
.site-banner a{color:var(--gold2);text-decoration:none;font-weight:700;margin-left:8px}
.site-banner a:hover{text-decoration:underline}
/* ── NAV ── */
.nav{
  position:sticky;top:0;z-index:500;
  background:rgba(8,8,16,0.92);
  backdrop-filter:blur(16px);
  border-bottom:1px solid var(--border);
}
.nav-inner{
  max-width:1200px;margin:0 auto;padding:0 28px;
  height:62px;display:flex;align-items:center;justify-content:space-between;
}
.nav-logo{display:flex;align-items:center;gap:10px;text-decoration:none}
.nav-logo-mark{
  width:36px;height:36px;
  display:flex;align-items:center;justify-content:center;font-size:18px;
  flex-shrink:0;
}
.nav-logo-name{
  font-family:var(--serif);font-weight:900;font-size:17px;
  color:#fff;letter-spacing:.5px;white-space:nowrap;
}
.nav-logo-name em{color:var(--gold2);font-style:normal}
.nav-links{display:flex;align-items:center;gap:2px}
.nav-links a{
  color:rgba(255,255,255,.55);text-decoration:none;
  padding:7px 13px;border-radius:6px;font-size:13px;font-weight:500;
  transition:all .18s;white-space:nowrap;
}
.nav-links a:hover,.nav-links a.active{color:#fff;background:rgba(255,255,255,.07)}
.nav-links a.active{color:var(--gold2)}
.nav-cta{
  background:var(--red)!important;color:#fff!important;
  font-weight:700!important;margin-left:8px;
  box-shadow:0 2px 12px rgba(192,57,43,.35);
}
.nav-cta:hover{background:var(--red2)!important;transform:translateY(-1px)}
.nav-mobile-btn{display:none;background:none;border:none;color:var(--text);font-size:22px;cursor:pointer;padding:4px 8px}

/* ── LAYOUT ── */
.container{max-width:1200px;margin:0 auto;padding:0 28px}
.section{padding:80px 28px}
.section-sm{padding:60px 28px}

/* ── TYPOGRAPHY ── */
.eyebrow{
  display:inline-block;font-size:11px;font-weight:700;letter-spacing:3px;
  color:var(--red2);text-transform:uppercase;margin-bottom:12px;
}
.heading-xl{
  font-family:var(--serif);font-weight:900;
  font-size:clamp(32px,5.5vw,60px);line-height:1.2;margin-bottom:18px;
}
.heading-lg{
  font-family:var(--serif);font-weight:900;
  font-size:clamp(24px,4vw,40px);line-height:1.25;margin-bottom:14px;
}
.heading-md{
  font-family:var(--serif);font-weight:700;
  font-size:clamp(18px,2.5vw,26px);line-height:1.35;margin-bottom:10px;
}
.lead{font-size:clamp(14px,1.8vw,17px);color:var(--text2);margin-bottom:32px;max-width:620px}
.gold{color:var(--gold2)}
.red{color:var(--red2)}

/* ── BUTTONS ── */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:13px 28px;border-radius:8px;text-decoration:none;
  font-weight:700;font-size:15px;cursor:pointer;border:none;
  transition:all .2s;
}
.btn-red{
  background:var(--red);color:#fff;
  box-shadow:0 4px 20px rgba(192,57,43,.4);
}
.btn-red:hover{background:var(--red2);transform:translateY(-2px);box-shadow:0 8px 28px rgba(192,57,43,.5)}
.btn-outline{
  background:transparent;color:var(--text);
  border:1px solid var(--border2);
}
.btn-outline:hover{background:var(--surface);border-color:var(--border2);transform:translateY(-1px)}
.btn-gold{
  background:var(--gold);color:#000;
  box-shadow:0 4px 20px rgba(240,180,41,.3);
}
.btn-gold:hover{background:var(--gold2);transform:translateY(-2px)}

/* ── CARDS ── */
.card{
  background:var(--bg3);border:1px solid var(--border);
  border-radius:14px;padding:28px;
  transition:all .3s;
}
.card:hover{border-color:rgba(192,57,43,.3);box-shadow:0 12px 40px rgba(0,0,0,.3)}

/* ── DIVIDER ── */
.divider{border:none;border-top:1px solid var(--border);margin:0}

/* ── BADGE ── */
.badge{
  display:inline-block;padding:3px 10px;border-radius:12px;
  font-size:11px;font-weight:700;letter-spacing:.5px;
}
.badge-red{background:rgba(192,57,43,.15);color:#ff7a6a;border:1px solid rgba(192,57,43,.3)}
.badge-gold{background:rgba(240,180,41,.12);color:var(--gold2);border:1px solid rgba(240,180,41,.25)}
.badge-green{background:rgba(39,174,96,.12);color:#5dde8a;border:1px solid rgba(39,174,96,.25)}
.badge-blue{background:rgba(52,152,219,.12);color:#79c0ff;border:1px solid rgba(52,152,219,.25)}
.badge-gray{background:rgba(255,255,255,.06);color:var(--text2);border:1px solid var(--border)}

/* ── CODE BLOCK ── */
.code-block{
  background:#0d1117;border:1px solid rgba(255,255,255,.1);
  border-radius:10px;overflow:hidden;
}
.code-bar{
  background:#161b22;padding:10px 16px;
  display:flex;align-items:center;gap:7px;
}
.code-dot{width:11px;height:11px;border-radius:50%}
.code-dot.r{background:#ff5f57}.code-dot.y{background:#ffbd2e}.code-dot.g{background:#28c840}
.code-filename{font-size:12px;color:rgba(255,255,255,.35);margin-left:8px;font-family:var(--mono)}
.code-body{padding:18px 20px;font-family:var(--mono);font-size:13px;line-height:1.9;overflow-x:auto}
.cm{color:rgba(255,255,255,.28)}.cp{color:var(--gold2)}.cs{color:#7ee787}
.ck{color:#ff7b72}.cv{color:#79c0ff}.cd{color:rgba(255,255,255,.75)}
.cursor{display:inline-block;width:7px;height:14px;background:var(--gold2);animation:blink 1s step-end infinite;vertical-align:middle}
@keyframes blink{0%,50%{opacity:1}51%,100%{opacity:0}}

/* ── FOOTER ── */
.footer{
  background:#05050e;
  border-top:1px solid var(--border);
  padding:56px 28px 28px;
}
.footer-grid{
  max-width:1200px;margin:0 auto;
  display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:48px;
  padding-bottom:40px;border-bottom:1px solid var(--border);margin-bottom:28px;
}
.footer-brand-desc{font-size:13px;color:var(--text3);margin-top:12px;line-height:1.8}
.footer-col h5{font-size:13px;font-weight:700;color:rgba(255,255,255,.7);margin-bottom:16px;letter-spacing:.5px}
.footer-col a{
  display:block;color:var(--text3);text-decoration:none;
  font-size:13px;margin-bottom:10px;transition:color .18s;
}
.footer-col a:hover{color:var(--gold2)}
.footer-bottom{
  max-width:1200px;margin:0 auto;
  display:flex;justify-content:space-between;align-items:center;
  font-size:12px;color:var(--text3);flex-wrap:wrap;gap:10px;
}
.footer-bottom-links{display:flex;gap:20px}
.footer-bottom-links a{color:var(--text3);text-decoration:none;transition:color .18s}
.footer-bottom-links a:hover{color:#fff}

/* ── SCROLL TOP ── */
.scroll-top{
  position:fixed;bottom:28px;right:28px;
  width:44px;height:44px;background:var(--red);color:#fff;
  border-radius:50%;display:flex;align-items:center;justify-content:center;
  text-decoration:none;font-size:18px;z-index:999;
  opacity:0;transform:translateY(10px);
  transition:all .3s;box-shadow:0 4px 16px rgba(192,57,43,.4);
}
.scroll-top.show{opacity:1;transform:translateY(0)}
.scroll-top:hover{background:var(--red2);transform:translateY(-2px)!important}

/* ── ANIMATIONS ── */
.fade-up{opacity:0;transform:translateY(22px);transition:opacity .6s ease,transform .6s ease}
.fade-up.visible{opacity:1;transform:translateY(0)}

/* ── HERO RADIAL GLOW ── */
.hero-glow::before{
  content:'';position:absolute;inset:0;
  background:
    radial-gradient(ellipse 55% 50% at 50% 110%,rgba(192,57,43,.28) 0%,transparent 65%),
    radial-gradient(ellipse 30% 25% at 10% 10%,rgba(240,180,41,.1) 0%,transparent 55%);
  pointer-events:none;
}

/* ── RESPONSIVE ── */
@media(max-width:900px){
  .footer-grid{grid-template-columns:1fr 1fr}
  .nav-mobile-btn{display:block}

  /* 桌面菜单隐藏 */
  .nav-links{
    display:flex;
    flex-direction:column;
    position:absolute;
    top:62px;left:0;right:0;
    background:rgba(8,8,16,0.98);
    backdrop-filter:blur(16px);
    border-bottom:1px solid var(--border);
    padding:12px 16px 20px;
    gap:2px;
    z-index:499;
    /* 默认收起 */
    opacity:0;
    pointer-events:none;
    transform:translateY(-8px);
    transition:opacity .22s ease, transform .22s ease;
  }
  .nav-links.open{
    opacity:1;
    pointer-events:auto;
    transform:translateY(0);
  }
  .nav-links a{
    padding:11px 14px;
    border-radius:8px;
    font-size:14px;
    width:100%;
  }
  .nav-cta{
    margin-left:0 !important;
    margin-top:8px;
    text-align:center;
    justify-content:center;
  }
  /* 汉堡按钮激活态 */
  .nav-mobile-btn.open{color:var(--gold2)}
}
@media(max-width:580px){
  .footer-grid{grid-template-columns:1fr}
  .section{padding:56px 20px}
}